Paper-making machine



March 9 192s. 1,576,126

; A. ALDRICH PAPER MAKING MACHINE Filed Nov. 4, 1921 3 Sheets-Sheet 1March 9 1926.

A. ALDRICH PAPERMAKING MACHINE Filed Nov; 4, 1921 3 Sheets-Sheet 2 March9 1926.

- 1,576,126 A. ALDRICH PAPER MAKING MACHINE Filed Nov. 4, 1921 3Sheets-Sheet 5 Patented Mar. 9, 1926.

UNITED STATES LLONZO ALDRICH, '01 BELOI'I, WISCONSIN.

PAPER-MAKING MACHINE.

To all whom it may concern:

Be it known that I, ALONZO ALDRICH, a citizen of the United States,residing at Beloit, in the county of Rock and State of Wisconsin, haveinvented a certain new and useful Improvement in Paper-Making Machines,of which the following is a full, clear, concise and exact description,reference being had to the accompanying drawings,

forming apart of this specification.

My invention relates to machines for making paper. j

The principal objects of the invention are to provide a simple andpractical machine formaking paper, and to produce a machine very muchsmaller and less complicated than present day aper making machines.

Another 0 'ject of the invention is to secure efliciency, economy andgreater speed in operation.

In the accompanying drawings Fig. 1 is a side elevation of a papermakingmachine embodying my present invention;

Fig. 2 is a plan view of the same;

Fig. 3 is a view partly in end elevation and partly in cross section;and

. Fig. 4 is a cross section taken on line 4--4 in Fig. 3.

In the drawings I show a machine having a base or body 1, in which ismounted a rotary member 2 in the form of a hollow cylinder. The ends ofthe member 2 are supported in bearings 3-3 supported on ped-. estals oruprights 44 at the ends of the base member 1. The rotary member 2 is toserve as a paper making element and to such end is made of a perforateconstruc- 'tion, as for example, by providing it with a plurality ofapertures 5- 5 terminating in a series of circumferential grooves 6'6. Aseries of longitudinally extending rods 7 are laid upon the periphery ofthe cylinder 2, being preferab y set in longitudinally extendin groovesof about half the depth of the rods 7 so that said rods 7 will projectabove the periphery of the cylinder 2 only about half their thickness asshown in Fig. 3.

A windin 'wire 8 is wrapped s irally aroundthe cylin er 2 outside of theongitudinall extending rods 7. Two layers of wire clot 8 and 8 arearranged outside of the winding wire 8, the inner or foundation 1ayer'8'being coarser than the outer layer '8".

tltlOIlS 16-1 6 extend upwardly from the Application filed. November 4,1921. Serial No. 512,Q11.

As a means for rotating thecylinder 2 I show agear 9 on one end of thesame, said gear 9 meshing with a pinion 10 on a rotary drive shaft 11carrying a driving pulley 12.

A wooden tank 13' is arranged below the cylinder 2 (Fig. 3), said tankhaving a chamber l3 -for the paper pulp from which the paper is to bemade. Within the tank 13 is a horizontal partition 14 through whichapertures 15 are formed and vanes or parpartition 14 to close proximityto the under side of the rotary cylinder 2. The apertures l5 and vanes16are preferably at anin'clination to the vertical, as shown in Fig. 3,so as to give the paper pulp a sidewise movement and thereby cross thefibers in th finished paper.

The pulp chamber or vat 13 is supplied with paper pulp from a tank orhead box 17 and the connection 18 extending from the 7 tank 17 to thebase member 1 and having I a channel or duct 19 for the flow of ulpmaterial. Circulation of the paper pu p is I secured by a pump 30connected with a small supplemental tank 31 and also connected with apipe 32 running back to the main tank or head box 17 and dischargin intothe same, the discharge being control ed by a valve 33. The supplementaltank 31 has a gate valve 34 controlling the passage or. duct betweensaid tank 31 and the pulp chamber 13, the gate valve 34 being ad ustable by means of an adjusting screw 35 and wheel 36.

Vacuum boxes 20 and 21 are arranged inside of the cylinder 2 andpreferably on the upwardly moving side of the same,.as shown in Fig. 1.These boxes 20 and 21.are susended by suitable means, as for exam lerackets 22, so that the under sides or w ls of the boxes are in contactwith the inner surface of the cylinder 2. The brackets 22 are in turnsupported by arms 23 secured by bolts 24 to the uprights 4. Adjustingscrews 25 adjust the positions of the boxes 20 and 21 and said screws 25hold the brackets 22 in adjusted positions. The boxes 20 and 21 areconnected with pipes 28 by means of branch pipes 29, the pipes 28running to a suitable blower or other-apparatus for producing a vacuumor partial vacuum so that air is. exhausted from the interior of theboxes and 21 and suction produced therein. The first box 20 draws waterfrom the.

pulp and the pulp against the wire, and so forms the sheet on the "wire.'The other box 21 draws water through the wire from the sheet to dry thesame. lVear plates 13 are bolted to the ends of the tank 13 to keep thepaper pulp from leaking out at the ends o'l" the tank under the cylmder.When these wear down, they may be removed and others. put in theirplaces.

A couch roll 38 is arranged abovethe cylinder 2, said roll 38beingcarried by suitable means, as for example, swinging arms 39-39pivotedat 40. The roll 38 is made f adjustable in asubstantia'llyhorizontal manner relatively to the arms 39 by means of bolts 41arranged to move in apertures 42 in the arms 39. This adjustment of theroll is controlled by a screw 43 having an end 45 in which the the lowerportion of the frame 55.

wheel 44 and engaging the movable bearings shaft or axle 46 of the wheel38 is mounted. V

A belt or band 47 of felt or other suitable material passes around theroll 38 and also over the top of the paper wheel or cylinder 2. Thisbelt or band 47 also passes between pressing or squeeze rolls 49 and 50adapted or s ueezing moisture out of paper on said ing arms 51 pivotedat 52 and carryin an adjusting weight 53 and the lower rol 52 beingmounted in bearings 54' supported Tin e bottom ro1li .50 is providedwith a clutch 56 (Fig. 2) and also with the driving pulley 57. The frame55 is supported on another frame 58 which has arms 59 supporting a roll60 over which latter the belt or band 47 passes. Another roll 61 ismounted on small pedestals 62 near the base of the frame 58. Thebeltor'band 47 passes first around the roll 61, thence up and overtheroll 60, then underneath and around the roll 38 and then between theupper and lower squeeze "rolls 49 and 50. The paper which is formed onthe wire on cylinder 2 passes from said cylinder 2 on to the felt band47 passing.

around the roll 38. The paper travels with the belt 47 from the roll 38to and between the squeeze rolls 49 and 50, by which latter theremaining moisture is squeezed out.

As an arrangement for facilitating the separation of the paper from thewire, on the roll 2, I show a vacuum box 63 on the top of the roll 2,said box 63 being connected by a pipe '64 with some suitable vacuumproducing apparatus to create a condition of suction in the box 63.

It will be seen that the machine is more simple and compact and is agreat deal smaller" and less complicated than present day papermachines, and it can be run a great deal faster.

sition on the outer side of the rotary formm member and close to thesame so. as to exert suction force on the paper strip before it actuallyleaves the forming member.

2. A papermachine comprising a tank or vat, a rotary member for makingpaper, said member being mounted to permit its lower portion to besubmerged in the pulp in said tank or vat, and the remainder to be unsubmerged, means for forming the paper sheet on the submerged portion ofsand member, means for withdrawing moisture from the sheet on saidmember, a roll coo crating with said rotary member to receive tl iepaper sheet from the same, and means tending to remove the paper fromsaid rotary member before it reaches said roll and facilitate itsmovement on to said roll.

' 3. The combination with a tank or vat and a rotary forming memberarranged above the tank or vat with its lower portion immersed in thematerial in the vat, of a suc-' tionbox on the inner side of the rotaryforming member about the level of the material in the tank or vat forfarming the film on the rotary member and a second suction box alsolocated within the forming member and above the first mentioned box' forwithdrawing moisture from the film. 0

4. The combination with a tank or vat and a rotary forming member arraned above the tank or vat with its lower portlon immersed in the,material in the vat, of a suction box on the inner side of the rotaryforming member about the level of the material in the tank or vat forformin the film onthe rotary member and a secon suction box also locatedwithin the forming member and above the first mentioned box forwithdrawing moisture from the film, and,

a third suction box on the outer side of the rotary member forstripping. the film from the same.

portion only shall be constantly immersed inthe pulp in said'vat, a tankat one side of the vat having a duct or passage by which the pulp maypass from said tank to the vat and means for inducing a flow of the pulpfromthe tank to the vat, said means comprising a circulatory systeminvolving a ump and return flow plpe extendmg from t e tank to the vat.

, 6. The combination of a tank or vat for the paper pulp, a rotarymember mounted above said vat and arranged so that its lower portiononly shall be constantly immersed 5 in the pulp in said vat, a tank atone side of the vat. having a duct or passage by which the pulp may passfrom said tank to the vat and means for inducing a flow of the pulp fromthe tank to the vat,'said means comprising a circulatory systeminvolving a 10 pump and return flow pipe extending from the tank to thevat, said tank havin a valve controlling the circulation in sai system.In Witness whereof, I hereuntosubscribe my name this 27th day ofOctober, A. D., 15

ALONZO ALDRICH.

